“「Dwell not upon thy weariness, thy strength shall be according to the measure of thy desire.」”

“「Do not wait for the last judgment. It comes every day.」”

“「Life is short, the art long, opportunity fleeting, experiment treacherous, judgment difficult.」”

“「One who knows that enough is enough will always have enough.」”

“「The knowledge of yourself will preserve you from vanity; the knowledge of the world will keep you from despair.」”